Papep-box-making machine and the like



March 10, 1925.

S. BERGSTEIN PAPER BOX MAKING MACHINE AND THE LIKE Filed Oct. 11, 1923 5 Sheets-Sheet 1 March 10, 1925. v

5.. BER/GSTEIN PAPER BOX MAKING MACHINE AND THE LIKE Filed Oct. 11, 1923 5 Sheets-sheet 3 5! vummtoz mm 1/ 7 mm a Q mm a? 6 m mm d -NmIM 33 m m QQ R attoznm March 10, 1925. 1,528,753

s. BERGSTEIN PAPER BOX MAKING MACHINE AND THE LIKE -Filed Oct. 11, 1923 5 Sheets-Sheet 2 March 10, 1925.

S BERGSTEIN PAPER BOX MAKING MACHINE AND THE LIKE Filed Oct. ll 1925 5 Sheets-Sheet 4 I E. #9 57W=H= 54 90 FI nu x 7 g I. Y I l 10 [05 VIII/[Ill S. BERGSTEIN PAPER BOX MAKING MACHINE AND THE LIKE March 10, 1925.

Filed Oct, 11, 1925 5 Sheets-Sheet 5 Patented Mar. 10.1625.

' UNITED'STATES PATENT OFFICE.

SAMUEL BERGSTEIN, OF MIDDLETOWN, OHIO, ASSIGNOB TO THE INTERSTATE FOLD- ING BOX. COMPANY, OF MIDDLETOWN, OHIO.

PAPEP BOX-M AKING MACHINE AND THE LIKE.

Application filed October 11, 1923. Serial No. 667,919.

To all wkom it may concern:

Be it known that I, SAMUEL BERGSTEIN,

. a citizen of the United States, residing at Middletown, in the county of Butler and State. of Ohio, have invented certain new and useful Improvements in Paper-Box- Making Machines and the like, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in machines for making paper folding boxes, the principle of the invention being generally applicable to paper box making machines, and applying 'more particularly in the formherein shown and described to machines of the character set forth in United States Patent No. 1,461,966, issued July Machines of this character are adapted for large, low-cost production, the folding. of the paper blanks, from which the boxes are made, gluing of the joints, and delivery of the boxes from the machine in knocked-down form being performed autofolding the boxes. for applying the glue? thereto for the joints, and for forming the joints, whereby uniformity of production and uninterrupted operation of the machine are obtained. The improvements in this respect consist of suitable mechanisms for using air pressure for operating certain of the mechanism for folding the box blanks and also for operating the gluing mechanism. I These and other'objects set forth inthe detailed specification hereof are realized in a machine as illustrated and described here in and defined and comprehended in the appended claims. f

In the accompanying drawings! Fig. 1, is a plan view of the machine; Fig. 2, is a side elevation;

ine, as herein shown and de-.

- Fig.3, is an enlarged plan view of a detail of the machine;

Fig. 4, is a longitudinal sectional view taken on line 4-4 of Fig. 3;

Fig. 5, is a cross sectional view taken on line 55 of Fig. 4;

Fig. 6, is a detail view of the paper blank folding mechanism on line 66 of Fig. 3;

Fig. 7, is an enlarged View of a detail of an air cylinder;

Fig. 8,-is a plan view of Fig. 7; Fig. 9, is a detail view of the valve controlling mechanism of the air line for operating the folding gluing mechanism;

Fig. 10, is a side elevation of Fig. 9;

Fig. 11, is a plan view of a box blank;

Fig. 12, is a plan View of the blankv shown in Fig. 11, partially folded.

Fig. 13 is a detail view of devices which act to initiate the first fold on the box blanks.

he improved machine in the general organization comprises as best shown in Fig. 1, a feedin mechanism -A, for the box blanks, folding mechanisms --B -C -E for blanks, and a gluing mechanism D, these mechanisms being arranged in coordinated relations one toanother and with respect to the machine as a whole, whereby to adapt .the machine for forming and gluing the boxes with constant forward movement of the blanks which makes possible the large production capacity of the machine.

The machine as a whole is supported on a main frame comprising side frames l, supported o legs 2, and joined one to the other by lip-standing cross frames 3.

The feeding mechanism, as here shown, is of a well known commercial type for feeding paper sheets. No novelty is claimed relative to this part of the machine, as any suitable mechanism for feeding the box blanks continuously to the machine will meet the, requirements of the invention. The main features of the mechanism consist of a supporting frame 1, an inclined table 4, upon which the box blanks are placed in suitable quantities. The blanks are delivered singly from the table 4, by a pick-up roller -5, coacting with a reciprocating pick-up roller .--6, which is operatively connected with a geared cam wheel -7, by crank connections -8 9 10; pick-up roller 5 being geared to a ratchet 11 which in turn is connected .to a pitman loo I wheel 12 by a rod 13. From the pickup rollers 5 6, the blanks are delivered to the opposite end ofthe feeder by a carrier belt 14, operating over a feed roller 15, geared to cam wheel 7 and an idle roller 16, adjacent the pick-up rollers 5 6. The blanks are held in frictional contact with belt 14 by a series of vertically disposed guide strips 17, arranged longi tudinally of the machine and supported on cross rods -18. Pitman wheel 12 is geared to cam wheel 7 which in turn is operatively connected to the main drive shaft -19 of the machineby a gear train -20-, 21, -22, 23, -24, 25,-, -26, as best shown in Fig. 2.

From the carrier belt 14L the box blanks are brought under control of opposite carrier belts 27, 28, arranged in vertical planes above and below the longitudinal center line of the machine. Belt 27 is driven by a roller 29, and travels idle rollers 32 33 in its upper course and a -roller-34 and the drive roller 29, in the lower course of travel. Belt 28, is driven by a drum 34, at the delivering end of the machine and traverses the drum 34 and an idle roller 35, adjacent the feeding mechanism, in its upper course of travel and idle rollers 36 37 38 in its lower course, roller 37 being mounted on a pivoted belt tightener arm 39. At the receiving end of belts 27 and 28, opposite pick-up rollers 41, act on the box blanks to bring the same under control of the belts, the upper roller being geared to cam wheel 7.

As the box blanks pass from the pick-up rollers 40-41, the opposite front corners a, (see Fig. 11) of the blanks, as they pass through the machine, are moved into engagement with tension elements -43, spring clips as here shown, which act to turn the side edges of the portions a, upwardly as the blanks pass over the clips, and as the same are moved into contact with opposite rollers disposed at an angle on opposite sides of the carrier belts 27 28. As the corner portions a of the blanks engage rollers 45 the intermediate portion 5 of the front as the blanks is engaged by opposite guides 46 which act together with belt 27 to hold the blanks down, thus causing a fold to be made on lines-c at each opposite front corner of the blanks as illustrated in Fig. 12, as the same are forced against and under rollers 45 by the feeding action of the carrier belts.

The detail mechanism of rollers 45 and guides 46 is best shown in Figs. 3

and .4. Each roller is supported rotatably in the lower ends of depending posts 7 ..47 which have their upper ends reduced and threaded toreceive a nut 48 by which means theiposts are secured in slots 49 of cross bars -50\,which are secured to the frame of the machine by means of brackets, the} slots 49 providing for adjustment of rollers 45 laterally to adapt the same for different sizes of box blanks. Guides 46 are supported on the lower ends of depending arms 52 secured to a cross bar 53,

which is supported on a bar 54; extending longitudinally of the machine and serving as a support for opposite longitudinal members 55, in a lower plane which, together with a second pair of opposite longitudinal members 56, act as guides for the box blanks through the machine. Vertical adjustment of guides 55,-to regulate the further compress the folded corners of the blanks and also to maintain the alignment of the blanks as the same are advanced unller the second set of opposite guides 46,

and over a second set of folding devices --61'which act to fold the opposite rear corners-a' in the same manner as the front corners a, the folding operation being accomplished without interrupting the forward movement of the blanks through the machine.

The folding devices 61, as here shown,

are mounted on the under side of a plate 62, supported on a frame cross bar 63, the folding devices being mounted on the inner ends of shafts 64, supported in brackets 65 secured to plate 62, and operable rotatably through slots 66 in plate 62. The opposite ends of shafts 64 are connected by means of a ratchet mechanism 67, or any suitable connection, to piston racks 68 of opposite air cylinders 69, the racks being supported by guides 68, and operated in one direction by s rings 68. The connection, to the cylin ers is such that shafts 64, and with the shafts the folding devices /--61, are operated by a half turn upon each actuation of the air cylinders. Air is admitted to the cylinders from an air line -70 and branch connections 71-72 by means of a spring pressure valve 73- in air line-70, the air line and valve being supported on :1. depending. plate, or

bracket 74 secured to one of the lower with yalv -73 and a ratchet connection -76 adapted to actuate pawl -75, the ratchet me'chanism including an arm -77 extending upwardly into the path of the box blanks, and adapted to be actuated by engagement thereof by the front edges of the blanks whereby to actuate valve -73, to admit air to cylinders -69, the operation 'being so, timed that the rear corners -a' of the blanks willebe in position over devices -61 to be folded by the operation thereof, as best illustrated in detail Fig. 6. Operation of the folding devices -61 is much faster than the movement of the box blanks, thus enabling the folds to be made without retarding the forward movement of the blanks. Upon actuation of arm -77, by a box blank, the blank passes over the free end of the arm, the arm being then retracted to. normal position to be engaged by the next b'lank by a spring -78.

As the box blanks pass from thesecond folding operation the same are engaged by additional upper belts -79 arranged on opposite sides and outwardly of upper carrier belt -27. Belts -79 traverse rollers -80 -81 and -82,'and in their lower course contact with the outer margins of the folded portions -a and a' of the blanks, thus acting with belts -27 and -28 to move the blanks forward, and acting further independently of belts -27 and -28 to fiatten the folds as the blanks are moved into register with the gluing mechanism. Belt pulleys and -81, are supported in the opposite ends of arms -83 secured to brackets -84, which in turn are secured on a shaft -85 having its ends supported in brackets on the side frames of the machine. Arms -83 are adjustable longitudinally on brackets -84 by means of slots -86 which provide for regulating the proximity of belt 79 to the box blanks. Belt tighteners -87 are also provided for belt -79 adjacent pulleys -82.

The gluing mechanism, as here shown, comprises four separate glue containers -88 of the character shown and described in detail in my copending ap lication for patent Serial No. 664,415 filed September 24, 1923. As the detail construction of the luing devices forms no part of the present invention, only the general arrangement and operation of the mechanism will be herein described.

Each of the glue containers is provided in its bottom with a plurality of apertures forming ports for the discharge of the glue, each port being normally closed with a stem -89 which projects through the ports and cated, thus causing asmall portion of glue to escape through each port and to .be deposited on the blanks,-as indicated .at -e in Fig. 12 from the ends of stems -89. The stems -89 are adapted to be reversed end for end, their opposite ends acting as plugs for the ports, thus some of the ports can be closed as desired to regulate the deposit of glue tothe size andshape of the glue sur- -.aces of the blanks.

The glue containers are secured by means of brackets -90 to rods -91, extending transversely of the machine, and supported in oscillating bearing blocks -92 hung on shafts -94 which in turn are supported in brackets 1", extending upwardly from its side frames -1, as best shown in Figs. 3 and 5. The bearing blocks -92 are mount ed eccentrically as indicated at -93, in Fig. 5, on shafts -94, the shafts being connected one to the other from opposite sides of the tion. Air for operating the rack is admitted to cylinder -97 from air line -70 through a. branch connection -101, which is provided with a valve connection -102, of the same construction as that shown and described in connection with detail. Fig. 10, the valve being operated to admit air to cylinder -97 by an arm -77 which is engagcd by the front edge of the box blanks as the same move into position under the containers -88 to receive a deposit of glue therefrom. Upon each operation of the valve, shafts -94 are ope-rated a full turn and each container -88 is reciprocated vertically, thus bringing port stems -89 into contact with portions d-(Z, of the blanks and making a deposit of glue thereon. A plate -103 supported on a cross rod 104 by means of brackets 105, as best shown in Fig. 5, supports the blanks from beneath asthe glue is deposited thereon, thus providing for even contact with the glue surfaces of d-0l, to effect a uniform deposit of glue thereon. e

As the blanks pass from the gluing mechanism the same are engaged by-a second upper carrier belt -27 traversing pulleys -27", 27, 27, and sustaining the same relation to the lower carrier belt -28 and the box blanks asupperoarrier belt -27, which extends only to the gluing mechanism. The blanks are also engaged at this point by 0pposite cross belts -106, traversing pulleys .-107 and -108, pulleys -107 being mounted in brackets -109, which are slidably secured to a cross bar -110, by means of a slot -111, pulleys -108 being adjustable slidably on their operating shaft -112.

lit)

' ily understood.

Thus the belts 106 are adapted to be spaced variably laterally one from the other to adapt the same to blanks of different sizes. The belts act on the blanks, in a manner well known in this art, to turn the opposite side portions d upwardly at an angle to effect a complete fold of these portions as the blanks pass between pressure rollers --113 which act to press the folded portions --a -a and d-d firmly together and thus to form adhesive junctures therebetween. From rollers -113 the blanks are delivered in knocked-down form over a series of carrier belts 114 1l5 116, of well known construction, to the delivery end of the machine, the blanks being stacked against a stop 117 and removed in quantities suitable for handling by the machine attendant.

main drive shaft -19 of the machine, operating movement from the shaft being transmitted to the delivery end of the machine by a belt 118 traversing pulleys -1l9 and 120, pulley -120 being connected to a drive shaft -121 which is connected to the various belt units by gear trains 112, 123, -124 and 125, -122, 12s, 12e, 127 and 12s, 12e, 219 and -180, -126, 129, --131 and 132, as illustrated in Fig. 2.

With respect to the air cylinders -69 and 97 and the air line connections thereto, it will be obvious that electrical devices,

as magnets, ormotors, and electrical connections, including contact switchesin place of valves 73, can be readily substituted for these parts and used with equal advantage in the operation of the machine.

From the foregoing detailed description and the drawings the construction and operation of my improved machine will be read- The invention with respect to the air operated folding and gluing mechanisms is broadly new in this art, and has been broadly defined in certain of the appended claims. Having described my invention, I claim:

1. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on saidtmachine, means disposed in the path of the blanks below the plane of movement thereof as the same pass from the feeding mechanism. in position to be engaged by the blanks and adapted to act on the front corners thereof to turn the same upwardly, means arranged farther along in the path of the blanks above their plane of movement, adapted to be engaged by said turned corners, and acting to form a fold thereof, means acting on the blanks to fold the rear corners thereof, means to apply an adhesive thereto, and means to effect further foldings thereof whereby to form ad'- means hesive junctures between said folded portions.

2. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on said machine, tension elements disposed in the path of the blanks below the plane of movement thereof as the same pass from the feeding mechanism, in position to be engaged by the blanks and adapted to act yieldingly on the front corners thereof to turn the same upwardly, means arranged farther along in the path of the blanks above their plane of movement, adapted to be engaged by said turned corners, and acting to form a fold thereof, means acting on the blanks to fold the rear corners thereof, means to apply an adhesive thereto, and

' means to effect further foldings thereof A power belt wheel 1 9 is secured to the whereby to form adhesive junctures between said folded portions.

3. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on said machine, opposite spring clips disposed in the path of the blanks as the same pass from the feeding mechanism, in position to be engaged by the blanks and adapted to act yieldingly on the under side of the front corners of the blanks to turn the same upwardly, means arranged farther along in the path of the blanks above their plane of movement, adapted to be engaged by said turned corners, and acting to form a fold thereof, means acting on the blanks to fold the rear corners thereof, means to loo apply an adhesive thereto, and means to efblanks farther along in their path adapted to engage said turned corners and acting to form a fold .thereof, means acting on the blanks to fold the rear corners thereof, means to apply "an adhesive thereto, and

means to effect further foldings thereof.

wherebyto form adhesive j unctures' between said folded portions.

5. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on said machine, means disposed in the path of the blanks below the plane of movement thereof as the same pass from the feeding mechanism, in position to be III . engaged the blanksand adapted to act on the front corners thereof o turn the same upwardly, opposltepress r evices arranged above the plane of moveme tspf the blanks at an angle to the direction of\\ comprising opposite shafts disposed at an 1uovcment, farther along in their path,

adapted to engage said turned corners and acting to form a fold thereof, means acting on the blanks to fold the rear corners thereof, means to apply an adhesive, and means to eifect further foldings thereof whereby to form adhesive junctures between said folded port-ions.

6. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on said machine, means disposed in the path of the blanks as the same pass from the feeding mechanism, in position to be engaged by the blanks and adapted to act on the front corners thereof to turn the same upwardly, opposite pressure rollers arranged above the plane of movement of the blanks farther along in their path, said rollers being adjustable laterally to suitthe size of the blanks, and acting to engage said turned corners to form a fold thereof, means acting on the blanks to fold the rear corners thereof, means to apply an adhesivethereto, and means to effect further foldings thereof whereby to form adhesive junctures betweensaid folded portions. 1

7. A box making machine including in combination 'with feeding mechanism for paper box blanks and means for moving the same on said machine, means adapted to fold the 'front corners of the blanks as the same pass from the feeding mechanism, means comprising opposite rotatable members normally in a plane below the plane of movement of the blanks, adapted to engage the blanks from beneath and fold the rear corners thereof in like manner to the folding of said front corners, means to apply adhesive to'the blanks, and means to effect further foldings thereof whereby to form adhesive'junctures between said folded portions.

8. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on said machine, means adapted to fold the front corners of the blanks as-the same pass from the feedin mechanism, means comprising opposite s afts rotatably supported in a plane below the plane of move- .ment of the blanks'and havlng lateral extensions adapted to engage the blanks from beneath and fold the rear corners thereof, means to apply an adhesive to the blanks, and means to effect further foldings thereof whereby to, form adhesive junctures between said folded portions.

9. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on said machine, means adapted to fold the front corners of the blanks as they pass from the feeding mechanism, means an e one to the other in a plane below thfe plan e of movement of the blanks and having opposite lateral extensions adapted al-' ternately to engage the blanks from beneath and effect an upward fold of the rear corners thereof, means to apply an adhesive to the blanks, and means to effect further foldings thereof whereby to form adhesive junctures means comprising an air line, means adapted to be actuated by the blanks for controlling the air line, and means operatively connected to the air line adapted to be actuated by air pressure therefrom upon actuation of said controlling means to effect a fold of the rear corners of said blanks, means to apply an adhesive to the blanks, and means to effect further foldings thereof whereby to form adhesive junctures between said folded portions. 7

11. A box making machine including in combination with feeding mechanism for paper box blanks and means for moving the same on saidmachine, means adapted to fold the front corners of the blanks as the same pass from the feeding mechanism, means comprising an air line including a valve for controlling the air line, a valve 12. A box making machine, including in I combination with feeding mechanism for paper box blanks and means for moving the same on said machine, means adapted to fold. the front corners of the blanks as the same pass from the means comprisin an air line and connections for controllmg the air line adapted to be actuated by said blanks, and means operatively connected to the air line including opposite air cylinders and a member con-X nected to each cylinder and adapted to eflfect a fold of a rear corner of said blanks upon actuation of said connections, means to apply an adhesive to the blanks, and means to effect further foldings thereof whereby to feeding mechanism, 120

form adhesive junctures between said folded portions.

13. A box making machine includingqin combination with feeding mechanism for paper box blanks and means for moving the same on said machine means adapted to-fold the front corners/of' theblanks as the same pass from/the feeding mechanism, means comprising a source of power and connections for controlling the same adapted to be actuated by said blanks, means operatively same on said machine, means comprising a source of power and connections for controlling the same including apart in the path of the blanks as the same move over the machine and adapted to be actuated thereby to release said power, and means operable by power so released to effect a fold of said blanks.

15. A box making machine including in combination with feeding mechanism for box blanks and means for moving the same on said machine, means comprising a source of power independent of said machine and connections for controlling the same including a part adapted to be actuated by each paper blank, in its forward movement on said machine, to release said power and upon the passing of each blank to be actuated by means independent of the blanks to shut-off said power, and means connected to said source and adapted upon operation of said power releasing means to be actuated'by power therefrom to effect a fold of a paper blank.

16. A box making machine including in combination with feeding mechanism for box blanks, means to fold the blanks, means comprising a source of power and connections for controlling the same adapted to be actuated by the paper blanks, gluing mechanism connected to said source and adapted to be operated by power therefrom to apply glue to the blanks upon actuation of sald controlling connections, and means adapted to further fold the blanks to effect adhesive junctures between folded portions thereof.

17. A box making machine including in combination with feeding mechanism for box blanks, means to fold the blanks, means comprising a source of power and connectrons for controlhngthesame inclu mg a pat tin the path of the paper blanks'as the same move over the machine adapted to be engaged and actuated by the blanks to release said power and to be actuated, to shutoff the power uponbeing disengaged by the blanks, gluing mechanism connected with said source of power and adapted to be operated with power therefrom transmitted through said connections to apply glue to the blanks, and means adapted to further fold the blanks to effect adhesive junctures between folded portions thereof.

18. A box making machine including in combination with feeding mechanism for box blanks and means for moving the same on said machine, means to fold the blanks, means comprising a source of power and connections for controlling the same adapted to be actuated by the boxblanks in their movement over said machine, means connected with said source and said connections and adapted to be operated upon actuation of the latter by power from said Source to fold said blanks, other means for controlling said power adapted to be actuated by the paper blanks subsequent to said folding operation, and other means connected with said source of power and the second named controlling means therefor and adapted to be operated upon actuation of the latter with power from said source to apply glue to the blanks, and means adapted to further fold the blanks to effect adhesive junctures between folded portions thereof.

19. The herein described method of making paper boxes consisting in causing suitable box blanks to be delivered through a box making apparatus, in causing the blanks to effect operation of controlling means of a source of power independent of said apparatus, to release said power, and in utilizing the power so released to actuate mechanism to effect foldings of said blanks.

20. The herein described method of making'paper boxes consisting in causing suitable box blanks to be delivered through a box making apparatus, in causing the blanks ture.

. SAMUEL BERGSTEIN. 

